code: def test_load_empty_lfw_pairs():
      with pytest.raises(OSError):
          fetch_lfw_pairs(
              data_home=SCIKIT_LEARN_EMPTY_DATA,
              download_if_missing=False,
          )
  
file_path: scikit-learn/sklearn/datasets/tests/test_lfw.py
imports: import os
  import random
  import shutil
  import tempfile
  from functools import partial
  import numpy
  import pytest
  from sklearn.datasets import fetch_lfw_pairs, fetch_lfw_people
  from sklearn.datasets.tests.test_common import check_return_X_y
  from sklearn.utils._testing import assert_array_equal
label_desc: Use image node_id 6 for calling a global function with example usage: test_load_empty_lfw_pairs() without return types